Chemical analysis and testing
Fibre testing (textiles)
Extraction methods of analysis
Textile fibres
Elastane
Mixtures
Determination of content
Textile testing
Chemical tests (textiles)
Quantitative analysis
Link: BS EN ISO 1833-20:2019 Textiles. Quantitative chemical analysis Mixtures of elastane with certain other fibres (method using dimethylacetamide)
Source: BSI Standards